Hello people!! I have 10 Hard Drives , total 14TB , i need some external storage unit connecte to my pc, something to put 4 or 6 hard drives , i have been looking but found nothing, anyone knows something about this!!!??

You need a NAS server or build a cheap pc to make a file server of sorts to store and pull files over the network.

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Need is a strong word. You can get external USB3/esata enclosures that can support 12+ HDDs. You don't NEED a NAS.
Here is a widely available 8 drive external enclosure.Mediasonic Probox H82-SU3S2 8-Bay USB3 Hard Drive ...
Also available in 4 drive, with or without RAID.

Personally I would recommend updating to higher capacity disks. Less power usage, simpler operation. I am phasing out my 1.5TB HDDs as the density isn't worth keeping, I only have 3 left over 30TB of protected storage (in a single mid tower diy NAS).